From the magazine,

Low-key luxe. A surge of color in silk ribbon, “Hand-Dyed 1/4” Silk Ribbon” by Tahki Imports, lends drama to a simple ribbed shell. Face-framing cowl-neck offers the ultimate in pared-down elegance. Very Easy, Very Vogue.

Materials
5 (6, 6, 7, 7) 1 3/4oz/50g hanks (100yd/92m) of Tahki Imports Hand-Dyed 1/4” Silk Ribbon (silk sz5) in Delphinium
This yarn is available only in a kit.
Not noted on the vk errata for this issue, but the metric numbers given are way off.

Knitted measurements
Bust
31 (32 1/2, 34, 36 1/2, 29 1/2) in / 39 (41, 42.5, 46, 49) cm
Length
24 (24 1/2, 24 1/2, 25, 25) in / 61 (62, 62, 63.5, 64.5) cm